docs(install): Add FAQ entry for installing Starship without sudo (#5648)

Add FAQ entry for installing Starship without sudo

Per [the comment](https://github.com/starship/starship/issues/5190#issuecomment-1553411366) in #5190, I've added an FAQ entry that includes an example script to install Starship without requiring `sudo`.
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Andre Wiggins 2023-12-30 08:32:11 -08:00 committed by GitHub
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@ -144,3 +144,11 @@ If Starship was installed using the install script, the following command will d
# Locate and delete the starship binary
sh -c 'rm "$(command -v 'starship')"'
```
## How do I install Starship without `sudo`?
The shell install script (`https://starship.rs/install.sh`) only attempts to use `sudo` if the target installation directory is not writable by the current user. The default installation diretory is the value of the `$BIN_DIR` environment variable or `/usr/local/bin` if `$BIN_DIR` is not set. If you instead set the installation directory to one that is writable by your user, you should be able to install starship without `sudo`. For example, `curl -sS https://starship.rs/install.sh | sh -s -- -b ~/.local/bin` uses the `-b` command line option of the install script to set the installation directory to `~/.local/bin`.
For a non-interactive installation of Starship, don't forget to add the `-y` option to skip the confirmation. Check the source of the installation script for a list of all supported installation options.
When using a package manager, see the documentation for your package manager about installing with or without `sudo`.